The time to progression of mild emphysema at age 52 to moderate emphysema after smoking cessation cannot be determined and is related to the individual’s physical condition and whether treatment is timely and effective. It may not progress or it may progress at any time. In mild emphysema, the symptoms are usually not obvious, and symptoms such as dyspnea occur mostly after strenuous exercise. For emphysema, smoking cessation is an important intervention, which can effectively relieve patients from symptoms such as chest tightness and coughing, and reduce the chances of developing infections. Appropriate nutritional supplements in daily life, appropriate physical exercise to enhance physical fitness, and active and correct treatment when symptoms occur, can generally be effective in slowing down the progression of the disease. It may not even progress to moderate emphysema. However, if the patient is in poor physical condition, prone to recurrent respiratory infections, and treatment is not timely, even after quitting smoking, the disease may progress to moderate emphysema at any time. 52-year-old mild emphysema if discomfort, in actively quit smoking at the same time, it is recommended to go to the hospital, under the guidance of the doctor for standardized treatment, if necessary, every six months to do lung function tests to reduce the adverse effects.